Apple logic pro 8 Handbuch

 Customizing Controller Assignments

 

Typically, the value range of 1 to 127 is used for the button pressed message. The zero 
(0) value is generally used for the button released message. 

Note:  Some control surfaces may use different value ranges (CM Labs MotorMix, for 
example). Assigning appropriate Min and Max values ensures that key repeat will work 
with such devices. This, however, means that you need to take care when manually 
changing the Min or Max value for a key command (in cases where the Min and Max 
values do not match the button pressed (on) and button release (off ) states, the 
complete assignment will not work). Please consult your control surface manual for 
further information about the values it uses. 

Assigning Buttons to Key Commands

In addition to assigning controllers to parameters, you can assign control surface 
buttons—and button or key release messages—to key commands.

Choose Logic Pro > Preferences > Key Commands to open the Key Commands window.

In the Command list, click the disclosure triangle next to the desired category to reveal 
the commands for that category, then select the key command you want to assign. You 
can also search for the desired key command by in the Search field. 

Click the Learn New Assignment button.

Press the (control surface) button that you want to assign to the key command. This 
sends a MIDI message to Logic Pro.

The name of the controller appears in the Assignments field.